Photons can be either absorbed from a null ray coming from a past cone, or emitted to a null ray going into the future cone. The knowledge we have is that, in the current state of our universe that is not possible. My understanding of what you are asking is if there can be light with negative energy. If light is being pulled in, you are being pulled in as well. But is there any other way ?Ī black hole always falls short of preventing light from reaching you, with the exceptions of the cases that you are just on the event horizon or below the event horizon. It is more difficult to think of something that represents darkness in a more straightforward sense with the correct physical model.Īll I could think of was a machine as powerful as a blackhole it could bend the light so hard that all we would see is darkness. For the real world we represent light as a spectrum, where there is a specific intensity for every energy/wavelength in the entire real number line. But the reality is that colors swaths are not a physical representation of light incident on something in the real world. It would be possible to configure a basis for representing a color where lightness, or conversely, darkness is one of the values involved, sure.

There are multiple combinations of values that can be used to represent a color, and in computer programs you can see some where a saturation value is used, for instance. You mention colors, and I think that in the context of colors your question makes more sense. Could you make a device that propagates darkness in the same way that light propagates? No, you can't. Light follows transport phenomena which is distinguishable and test-ably different from darkness. I have heard physicists talk about philosophy of physics classes where they deal with questions like 'can light be the absence of darkness'? This might seem like a question lacking concrete implications, but it isn't to at least some extent. This is a very meaningful question in my oppinion.

Black light lamp